Accel 140025 User manual

Brand: Accel

Model: 140025

Type: User manual

AFTERBURNER SWITCHABLE COIL

#140025

INSTALLATION INSTRUCTIONS

FORM 1647 02/05

Reading these instructions before starting the installa-

tion process will ensure that you will be able to take

the maximum advantage of all the performance that

your ACCEL Afterburner switchable coil was designed

to deliver.

The ACCEL Afterburner switchable coil is designed to

work on most vehicles equipped with a distributor and

a single coil type ignition system. It will work with the

stock vehicles ignition controls as well as most after-

market inductive storage as well as CD type ignition

control boxes.

In the normal mode the ACCEL Afterburner switchable

coil is designed to boost the amperage available at

the spark plug for improved low RPM engine perfor-

mance, maximum load conditions such as when

towing as well as helping to maximizing your fuel

efficiency. In the switched mode the ACCEL

Afterburner coil is design to boost voltage at the

spark plug for improved high RPM performance under

higher cylinder pressure conditions typically found

when under boost or using nitrous oxide as well as

helping to eliminate high RPM misses.

NEVER

switch the modes of the ACCEL After-

burner coil while the engine is running! During the

time it takes to switch the ACCEL Afterburner coil

from one mode to the other, several ignition events

could be missed if the engine was running, even at

idle speed. This could cause an engine miss-fire

and resulting in exhaust and/or intake system

damage. Any vehicle damage that could result

from switching the ACCEL Afterburner coil while

the engine is running will NOT

be covered under

the product’s limited warranty nor is any coverage

of said possible damage is implied.

Due to the high-energy output, the ACCEL Afterburner

switchable coil is supplied with an ACCEL 300+

8.8mm universal coil lead. The extruded aluminum

housing/mounting bracket is designed with cooling

fins for efficient heat dissipation. A mounting/

installation hardware kit is included. A universal

wiring harness is also included. This OEM quality

harness is designed to work with most vehicles’

engine compartment layouts.

Step #1

Choose an area on the fire well or fender well where

the ACCEL Afterburner coil may be mounted with no

interference from throttle linkage, air conditioning lines,

heater hoses, etc. and is no further than 24" from the

distributor. Please note that the ACCEL Afterburner

coil may not fit into your original coil’s mounting

location.

Caution: Before drilling any holes, please check and be

aware of what you may be drilling into. Be sure not to

damage a component that may be under or in line with

a mounting hole.

Step #2

Use the supplied fasteners in the hardware kit to

mount the ACCEL Afterburner switchable coil.

Step #3

The ACCEL Afterburner switchable coil comes with a

universal wiring harness. This harness must be spliced

into the vehicles OE wiring harness at the OC coil

connection using the butt splices connectors

supplied in the hardware kit. The yellow wire lead in

the ACCEL harness must be connected to the OE coil

(+) positive lead, while the black wire lead of the

ACCEL harness must be connected to the OE coil (–)

negative harness wire lead. Please refer to your

specific vehicles’ shop manual for the exact color

coding of the coil positive and coil negative leads

before cutting the OEM harness and splicing in the

ACCEL harness.

The blue wire lead in the ACCEL harness must be

connected to a vehicle 12 V switched ignition source.

ACCEL www.accel-ignition.com

www.accel-ignition.com ACCEL2

the switch to the on position, you are switching the

ACCEL Afterburner coil into the high RPM mode. By

closing the switch cover you are also turning the

switch toggle off at the same time and also returning

the ACCEL Afterburner coil to the low RPM mode.

Remember to NEVER

switch the modes of the

ACCEL Afterburner coil while the engine is

running!

Step #5

Route the green and brown leads of the ACCEL wiring

harness through the fire wall, behind the dash to the

selected switch mounting point, making sure the two

pre-insulated terminals can reach the desired switch

location. If you need to drill any holes in the firewall

to gain access for the harness, make sure to use the

supplied grommet in the hardware kit to protect the

wires from chaffing. Also make sure that once the

harness is positioned and secured that you seal up

any openings that you may have had to make in the

fire wall with a water proof material such as an RTV

sealant (not included).

The arming switch is a DPDT (double pole, double

throw) type switch. That means it has two rows of

terminal tabs on the back of the switch. Each one of

these terminal tabs are numbered, #1 though #6. You

need to plug the pre-insulated terminal on the green

lead of the ACCEL harness onto terminal tab #1 and

the pre-insulated terminal on brown lead of the

ACCEL harness onto terminal tab #2. The ring

terminal on the other end of the brown lead must be

secured to a ground. Typically a good ground source

would be one of the dashboard support bolts or one

of the grounding posts found under the dash used by

the OEM dash harness.

NOTE: Make sure the green and brown leads are

properly plugged into the switch prior to mounting

the switch.

Step #6

Once a favorable switch location is found, it is deter-

mined that the ACCEL green and brown leads can

reach that location and are both plugged into the back

of the switch, it’s time to mount the arming switch.

Use either a 15/32" or a 1/2" drill bit to drill the hole in

the mounting surface to locate the switch. Make sure

not to damage any components that might be found

behind the mounting surface. Insert the switch into

the hole from behind the mounting surface. Slip the

You can usually find a source for 12 V switched

ignition source on the ignition “on” powered side of

the fuse panel. Depending on the vehicle, there are

some times extra terminal positions in the ignition “on”

powered side of the fuse panel that can be plugged

into or tap into with the proper fuse panel

terminals (not included). If in doubt, please refer to

your specific vehicle’s shop manual.

Plug the 3-way weather pack connector on the

ACCEL harness to the 3-way connector on the

ACCEL Afterburner switchable coil. Do not force

the connectors together as they are designed to be

inserted only one way.

Install the relay onto the mating 5-way connector on

the harness. Again the connector and relay are

designed to be inserted only one way, with the lock

tabs aligned on the same side. Be careful not to

bend any of the tabs on the bottom of the relay when

inserting the connector. Secure the relay inside the

engine compartment so that it is not free to move

around.

Step #4

Find an appropriate location inside the vehicle for the

arming switch. This can be anywhere on the lower

dash, console or hidden under the dash, inside the

console or other compartments. There must be

approximately 2-1/2" of clear space behind the

mounting surface to fit the switch and the wiring

harness.

Note: It takes a bit of force to flip up the cover on

the arming switch, so make sure the mounting

location is strong enough to handle the job. You

may have to reinforce the location with additional

sheet material to spread the force out and keep

the switch firmly attached.

The switch must be installed from behind the mount-

ing surface, so make sure you can gain the required

access behind the mounting surface. If desired, a

remote switch mount (not included) can also used to

mount the switch from say below the dash. Also note

the alignment tab on the arming switch cover plate

and the slot in the switch threads. This means that the

arming switch and cover plate can only be assembled

one way. You want to position the arming switch so

that the cover flips forward or upward to gain access

to the switch toggle. The ACCEL Afterburner coil is

switched between modes by the arming switch. When

the arming switch is in the normal or off position, the

Afterburner coil is in the low RPM mode. By toggling

ACCEL www.accel-ignition.com

arming cover plate over the switch. Note the align-

ment tab and slot on the arming cover plate and the

switch. Secure the switch and arming cover plate to

the switch with the switch nut.

Step #7

Carefully route the ACCEL harness away from any

linkage, air conditioning lines, heater hoses, exhaust

manifolds, etc. by using the mounting hardware

included in the kit.

Step #8

Measure the coil wire to the length. Connect the

ACCEL 300+ 8.8mm coil wire to the ACCEL

Afterburner switchable coil and measure the length

needed to the distributor cap, then add an extra 1/2"

to 1" to the length. Once the finished length is deter-

mined, cut and terminate with the supplied terminal.

A) Carefully strip the wire to expose 1/2" to 5/8" of the

conductor core.

DO NOT SLIT THE CORE

DO NOT SHRED OR STRIP AWAY THE CORE

B) Bend the core conductor back over the wire and

insert into the terminal.

C) Bend the terminal tabs over with pliers and/or an

ignition wire-crimping tool.

Note: For best results, use the ACCEL p/n’s 170036

or 170037 crimping tool.

D) Lightly lubricate the terminal with the dielectric

grease included and slide the wire into the HEI

boot. A small amount of dielectric grease may also

be applied inside of both the distributor and coil

boot to help prevent any high voltage leakage.

E) Be sure you have made a good connection on the

distributor cap and coil. You should recheck these

connections periodically. If the connector in either

boot becomes grey-green in color or appears

corroded, you may have a poor connection.

You have completed the installation of the ACCEL

Afterburner switchable coil and you are now ready

to now enjoy increased ignition performance.

Remember to NEVER

switch the modes of the

ACCEL Afterburner coil while the engine is

running!

MEASURE WIRE TO CORRECT LENGTH

ACCEL IS A DIVISION OF THE MR. GASKET PERFORMANCE GROUP

10601 MEMPHIS AVE #12, CLEVELAND, OH 44144

216.688.8300 FAX 216.688.8306

FORM 1647

02/05

Made in U.S.A.

Printed in U.S.A.

www.accel-ignition.com

ACCEL4

Accel 140025 User manual

Accel 140025 User manual

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